Abstract: La2O3/TiO2 photocatalyst is prepared by carbon adsorption co-precipitation method.The samples are characterized by TG-DTG,XRD,TEM and UV-Vis.The impacts of La2O3/TiO2 prepared under different conditions on the degradation of methyl orange by using visible light irradiation are studied.Results show that the addition of carbon black during the reaction can effectively prevent the agglomeration and sintering of the particles during the preparation,drying and roasting processes.The powder obtained after calcination at 600℃ has high crystallinity,uniform particle dispersion,and small particle size.Under visible light irradiation for 1 h,the degradation rate of methyl orange over La2O3/TiO2 prepared by carbon adsorption co-precipitation method can reach as high as 92.25%,which is three times that over La2O3/TiO2 prepared by common precipitation method,representing a significantly improved photocatalytic activity.
郝淳林, 王丽红, 郭贵宝. 炭吸附La2O3/TiO2复合粉体的制备及其光催化性能研究[J]. 现代化工, 2020, 40(12): 112-115.
HAO Chun-lin, WANG Li-hong, GUO Gui-bao. Preparation of La2O3/TiO2 nanocomposite powder by carbon adsorption and study on its photocatalytic properties. Modern Chemical Industry, 2020, 40(12): 112-115.
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